decrby method

Future<int> decrby(
  1. String key,
  2. int decrement
)

Decrements the number stored at key by decrement. If the key does not exist, it is set to 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer. This operation is limited to 64 bit signed integers.

See incr for extra information on increment/ decrement operations.

Returns the value of key after the decrement.

Implementation

Future<int> decrby(String key, int decrement) async {
  return (await tier1.decrby(key, decrement)).toInteger().payload;
}